JP7266069B2 - Seat support drive and support assembly including same - Google Patents

Description

The subject matter disclosed herein relates to a seat support drive unit and a support assembly including the same, and more specifically, a seat support drive unit installed in a seat frame of a vehicle to support an occupant, and the seat support drive unit. Concerning support assemblies containing.

Unless otherwise indicated herein, the subject matter described in this identification is not prior art to the claims of this application, nor is it admitted to be prior art by reason of its inclusion in this identification. do not have.

The seat consists of a seat cushion that supports the occupant's buttocks, a seat back that supports the back, an armrest that supports the occupant's arms, and a headrest that supports the occupant's head. .

In the case of a seat support device that supports and adjusts the position around the pelvis of the passenger, products with various structures are manufactured or researched, but in order to improve the performance and fuel efficiency of the vehicle, the number of parts is reduced as much as possible. It is necessary to reduce the weight by manufacturing with

In addition, in order to be built in seats of various sizes corresponding to various types of vehicles, it is essential to have a structure that supports the body of the passenger comfortably and stably as well as deforms in a limited space.

In this regard, Patent Document 1 discloses a lumbar support device, and Patent Document 2 discloses a vehicle seat support device.

However, the conventional invention does not disclose an invention capable of minimizing the weight by reducing the number of parts constituting the support assembly and driving in a limited space.

Korean Patent No. 10-1006730 Korean Patent No. 10-0805475

SUMMARY OF THE INVENTION It is an object of the present invention to provide a support drive for a seat and a support assembly including the same that reduces manufacturing costs, volume and weight through tube expansion and a mat structure that is moved by tube expansion.

Moreover, it is obvious that there is a possibility that another technical problem may be derived from the following description without being limited to the technical problems described above.

According to an embodiment of the present invention, the support driving part coupled to the seat frame includes a support part coupled to the seat frame, a tube coupled to the support part, and separated from the support part across the tube. , a mat coupled to the support so as to be movable in adjacent directions, the tube being driven by a pump connected to the tube via a hose to expand and push out the mat. be.

Further, the support part may be formed in a rectangular plate shape, coupled to the seat frame, and rotatably coupled to the mat.

According to another embodiment of the present invention, the support assembly comprises a first support coupled to the seatback frame, a first tube coupled forward of said first support, and forward and backward of said first tube. a first support driver including a first mat movably coupled to the first support; a second support coupled to the cushion frame; a second tube coupled to the top of the second support; and the second tube. a second support drive unit including a second mat coupled to the second support unit so as to be vertically movable at an upper portion of the second support drive unit; It includes a pump configured to be connected to supply air.

In addition, the first support part includes a first support bracket coupled with the seat back frame behind the first tube, and an upper part of the first support bracket with respect to the first mat and an axis extending to both sides. A second support bracket may be included for pivotal coupling.

In addition, the second support part includes a third support bracket coupled to the front part of the cushion frame at the lower part of the second tube and rotatably coupled to the second mat, and one end of the support bracket is connected to the third support bracket. A fourth support bracket may be included which is connected to the rear and whose other end is formed in a ring shape and which is connected to the rear of the cushion frame.

In addition, the second mat has one end formed in a plate shape, a part of the front edge thereof is rotatably coupled to the third support bracket, and the other end extends backward and upward from the one end by a predetermined distance. May be extended.

Also, the third support bracket may be formed in an arch shape with both sides partially bent forward and protruding rearward.

According to one embodiment of the present invention, the support assembly is coupled to the seat frame including the seat back frame and the cushion frame, and deforms under manipulation by the passenger to comfortably support the pelvis of the passenger seated on the seat.

In addition, since the support assembly operates by rotating the pneumatically inflated or deflated tube and the mechanically rotating mat, it has the advantage of reducing the number of parts and weight compared to conventional mechanical support assemblies. be.

In addition, the support assembly prevents the passenger from shaking due to deformation of the tube compared to the conventional pneumatic support assembly that inflates or contracts only by pneumatic pressure, thereby preventing motion sickness and improving driving stability. There is an advantage that

The support assembly also has the advantage of reducing weight through the tube, reducing the number of parts required to extrude the mat, and allowing it to be used in slim seats due to the reduced volume when the tube is shrunk. .

In addition, these effects of the present invention are naturally exhibited by the configuration of the described contents regardless of whether the inventors are aware of them. The mere effect shall not be construed as stating all effects known or real to the inventor.

In addition, the effect of the present invention should be further understood by the overall description of the specification, and even if it is not described in explicit sentences, those who have ordinary knowledge in the technical field to which the description belongs is an effect that can be recognized as having such an effect throughout the present specification, it must be regarded as an effect of the present invention.

FIG. 4 is a state-of-use diagram of a support assembly according to an embodiment of the present invention; FIG. 2 is an exploded perspective view of the first support drive part of FIG. 1; FIG. 2 is an exploded perspective view of the first support drive part of FIG. 1; FIG. 2 is a perspective view showing the separated second support drive part of FIG. 1; FIG. 2 is a perspective view showing the separated second support drive part of FIG. 1; Figure 2 is a cross-sectional view showing the actuation of the support assembly of Figure 1;

The configuration, operation and effects of a seat support drive unit and a support assembly including the same according to preferred embodiments of the present invention will now be discussed with reference to the accompanying drawings. For reference, in the following drawings, each component is omitted or schematically illustrated for convenience and clarity, and the size of each component does not reflect its actual size, nor does the specification as a whole. The same reference numerals refer to the same components throughout, and the drawing numerals for the same configurations in each drawing are omitted.

As shown in FIGS. 1-6 , the support assembly 100 includes a seat frame 20 , a first support drive section 200 , a second support drive section 500 and a pump 800 .

The support assembly 100 is coupled to the seat frame 20 including the seat back frame 22 and the cushion frame 24, and is deformed by the operation of the passenger to comfortably support the pelvis of the passenger seated on the seat.

In addition, the support assembly 100 operates by rotating a tube that is pneumatically expanded or contracted and a mat that is mechanically rotated, and has the advantage of reducing the number of parts and weight compared to conventional mechanical support assemblies. .

In addition, the support assembly 100 prevents the occupant from shaking due to deformation of the tube compared to the conventional pneumatic support assembly that expands or contracts only by pneumatic pressure, thereby preventing motion sickness of the occupant and improving driving stability. It has the advantage of being

The first support driving part 200 includes a first support part 300 , a first tube 400 , a first mat 450 and a first hose 480 .

The first support driving part 200 is coupled to the seatback frame 22 and is formed such that the mat disposed forward moves forward or backward according to the expansion or contraction of the tube disposed rearward.

The first support part 300 includes a lower bracket 305 , an upper bracket 310 , a first support member 320 , a second support member 330 , a first bracket 340 , a first support bracket 350 and a second support bracket 360 .

The first support part 300 is coupled with the seat back frame 22 in a space formed inside the seat back frame 22 and is coupled with the first tube 400 disposed in front of the first support part 300 to form a first tube. The first tube 400 is supported so that the tube 400 expands forward.

The lower bracket 305 is formed in the shape of a bracket extending to one side or the other side. 1 support member 320 .

The upper bracket 310 is formed in the shape of a bracket extending from the upper portion of the seatback frame 22 toward one side or the other side, and the one side and the other side are coupled to the one side and the other side of the seatback frame 22 .

Part of the first support member 320 is vertically bent upward to be coupled to the first bracket 340, and the lower part is coupled to the lower bracket 305 through the coupling member 305a.

The second support member 330 is vertically bent upward at one side and the other side to be coupled to the upper bracket 310 , and the lower portion is inserted into the first bracket 340 to be coupled to the first bracket 340 .

The first bracket 340 is formed in the shape of a rectangular frame with an inner space opened downward, and a portion of the lower edge of the second support member 330 is connected to the first bracket 340 while being connected to the first bracket 340 . exposed at the bottom of the

The first support bracket 350 is formed in the shape of a square plate with a plurality of through holes formed in the center, is disposed in front of the lower portion of the first support member 320, and is partly mounted on one side and the other side of the first support member 320. are inserted on both sides of the first support bracket 350 .

A hooking member 351 extending forward and upward in an annular shape is formed on both upper portions of the first support bracket 350, and the hooking member 351 is coupled with the first tube 400 disposed forwardly.

The second support bracket 360 has a through hole formed in the center, rectangular plate-shaped protrusions 361 formed on both sides and upper edges, and a fixing plate 362 formed on the lower part.

A protrusion 361 formed on the upper portion of the second support bracket 360 is rotatable about a portion of the second support member 330 exposed to the outside at the lower portion of the first bracket 340 and an axis extending to one side or the other side. Join.

Hooking members 363 are formed on the bottom surface of the second support bracket 360 corresponding to both sides of the fixing plate 362 , and each hooking member 363 is rotatably coupled to the first mat 450 .

Specifically, as shown in FIG. 3, each locking member 363 includes a bent portion 364 and a rotating shaft 365 .

One ends of the bent portions 364 are connected to the bottom surface of the second support bracket 360 at positions spaced apart from each other, and the other ends extend downward in an arch-like shape protruding rearward.

The rotating shaft 365 is formed in a cylindrical shape extending toward one side or the other side, and portions of the one side and the other side are connected to the other ends of the bent portions 364, and the central portion of the rotating shaft 365 and the second support bracket are connected to each other. An annular groove 366 is formed between 360 .

First tube 400 includes inflatable member 410 and securing member 420 .

The first tube 400 is shaped like a square plate, is detachably coupled to the front of the first support part 300 , and is expanded or contracted forward by a pump 800 connected through a first hose 480 .

The expansion member 410 is formed in the shape of a square plate with a sealed space inside, is connected to the pump 800 via the first hose 480, and expands forward when air is supplied to the internal space.

One end of the fixing member 420 is vertically bent rearward from the upper edge of the expansion member 410 and formed in a plate shape extending to one side or the other side, and the other end is bent upward from one end. .

The other end of the fixing member 420 is in contact with the front surface of the upper end of the first support bracket 350 , and the rear surface of the fixing plate 362 is in contact with the front surface of the other end of the fixing member 420 . The member 351 penetrates and protrudes forward of the fixing member 420 .

As a result, the first tube 400 is pressurized by the fixing plate 362 so that the load of the passenger's upper body applied to the second support bracket 360 moves backward, and is firmly coupled to the first support bracket 350. It has advantages.

The first mat 450 is formed in the shape of a square plate and is disposed in front of the first tube 400. As the first tube 400 is inflated, the lower end moves forward with the upper end as an axis.

A ring member 451 protrudes rearward in a ring shape from the upper portion of one side and the other side of the first mat 450 and is coupled to the hook member 363 so as to be rotatable about a shaft extending toward one side or the other side. is formed.

Specifically, the ring member 451 includes a ring body portion 452 and a ring portion 453 .

The ring main body 452 is formed in the shape of a square plate having a square hollow in the center, and a protrusion 452a formed by protruding rearward from a portion of the inner surface adjacent to the square hollow is a rotating shaft. It sticks to the front of the 365.

One end of the ring portion 453 is formed in the shape of a reinforcing plate extending rearward, with reinforcing members extending in the front-rear direction spaced apart from one side to the other side at the same intervals. connected to the top of the

The other end of the ring portion 453 extends downward while maintaining the shape of one end, and surrounds the rear portion of the rotation shaft 365 while the ring portion 453 is coupled to the central portion of the rotation shaft 365. is formed as

The ring portion 453 passes through the ring groove 366 and moves to the rear of the locking member 363 , and both side surfaces of the ring portion 453 come into close contact with the bent portions 364 while surrounding the central portion of the rotating shaft 365 .

Therefore, when the first mat 450 is coupled to each hook member 363 through the ring member 451 , the axis extending vertically across the center of the first mat 450 is the reference due to the close contact structure of the ring portion 453 and the bent portion 364 . to prevent the first mat 450 from rotating.

In addition, while the lower part of the first mat 450 moves forward or backward about the extension direction of the rotating shaft 365, one side and the other side of the first mat 450 move by the same distance, so that the upper body of the occupant is moved. It has the advantage of being comfortable to hold.

In addition, when different pressures are applied to one side or the other side of the first mat 450 due to the expansion of the first tube 400, the bent structure of the bent portion 364 can prevent deformation of the bent portion 364, and the ring portion 453 can move up and down. There is an advantage that it is possible to prevent rotation on the basis of the axis of the part.

The advantage of the first mat 450 is that it is more comfortable than a pneumatic support assembly that operates solely on the tube because it rotates through the pivot 365 without twisting even when the first tube 400 is contracted under the load of the occupant. There is

The second support driving part 500 includes a second support part 600 , a second hose 680 , a second tube 700 and a second mat 750 .

The second support driving part 500 is detachably coupled to the inner side of the cushion frame 24 so that the mat disposed on the upper side moves upward or downward according to the expansion or contraction of the tube disposed on the lower side. It is formed.

As shown in FIGS. 4 and 5, the second support part 600 includes pivot shafts 605 and 610, a front bracket 615, a first lower support member 620, a second lower support member 630, a third lower support member 640, a third It includes four lower support members 645 , a third support bracket 650 and a fourth support bracket 660 .

The second support part 600 is coupled with the cushion frame 24 in the inner space of the cushion frame 24 and supports the lower part of the second tube 700 while the second tube 700 is inflated by the pump 800 .

The rotating shaft 605 is formed in a cylindrical shape extending toward one side or the other side, and the one side and the other side are coupled to the rear one side and the other side of the cushion frame 24 and coupled to the fourth support bracket 660 . .

The rotating shaft 610 is formed in a cylindrical shape extending toward one side or the other side, and the one side and the other side are coupled to the front one side and the other side of the cushion frame 24 and coupled to the front bracket 615 .

Each of the front brackets 615 is disposed at a predetermined distance in front of the fourth support bracket 660 , and is spaced from one side and the other side of the pivot shaft 610 , respectively. Join.

One end of the first lower support member 620 is inserted into one side of the fourth support bracket 660, and the other end of the first lower support member 620 passes through the third support bracket 650 and extends forward to be disposed on one side. to the forward bracket 615 that

One end of the second lower support member 630 is inserted into the other side of the fourth support bracket 660, and the other end of the second lower support member 630 passes through the other side of the third support bracket 650 and extends forward to the other side. It couples to the front bracket 615 provided.

One end of the third lower support member 640 is inserted into the fourth support bracket 660 from the other side of the first lower support member 620, and the other end of the third lower support member 640 passes through the third support bracket 650 from one end to extend forward. and connect to the front bracket 615 on one side.

One end of the fourth lower support member 645 is inserted into the fourth support bracket 660 between the second lower support member 630 and the third lower support member 640, and the other end of the fourth lower support member 645 extends from one end to the third support bracket. Extends forward through 650 to couple to front bracket 615 on the other side.

The third support bracket 650 is formed in an arch shape with both sides bent forward and protruding rearward to surround a space connected to the vehicle frame through a swivel device.

The third support bracket 650 is coupled to the first to fourth lower support members 620, 630, 640, 645 between the fourth support bracket 660 and the front bracket 615, and the second tube 700 is coupled to the top.

One end of the fourth support bracket 660 is coupled with the first to fourth lower support members 620, 630, 640, 645 behind the third support bracket 650, and the other end extends rearward and upward from the one end. It extends obliquely , is formed in a ring shape, and is coupled with the rotating shaft 605 .

Both sides of the second tube 700 protrude forward in the shape of a rectangular plate, and an enclosed space connected to the first hose 480 is formed therein, and the second tube 700 is coupled to the upper portion of the third support bracket 650 .

The second tube 700 expands upward when air is supplied through the second hose 680, and moves upward along the second mat 750 while gradually deforming to have an elliptical cross-sectional structure. to move.

One end of the second mat 750 is rotatably coupled to the front of both sides of the third support bracket 650 on the basis of an axis extending to one side or the other side, and the other end is rearward and upward of the second tube 700 . It extends so as to incline toward it.

The pump 800 is formed in a cylindrical shape extending forward or rearward, is coupled to the other side lower part of the third support bracket 650 or the cushion frame 24, and is connected to the second hose 480 and the second hose 680 via the first hose 480 and the second hose 680, respectively. 1 tube 400 and second tube 700, respectively.

When air is supplied only to the second hose 680 by driving the pump 800, the second tube 700 expands upward, and the other end of the second mat 750 moves upward with one end as an axis. support the occupant's buttocks.

When air is supplied only to the first hose 480 by driving the pump 800, the first tube 400 expands forward, and the lower portion of the first mat 450 moves forward about the rotary shaft 365. Support the passenger's lumbar spine or back.

Therefore, the support assembly 100 can simultaneously inflate the first tube 400 and the second tube 700 by driving the single pump 800, or inflate only one of the first tube 400 and the second tube 700. This has the advantage of being smaller in size, weight and cost than mechanical support assemblies that require multiple actuators.

In addition, the first mat 450 and the second mat 750 have the advantage of preventing the occupant's body from shaking due to the deformation caused by the movement of the air inside the first tube 400 and the second tube 700 .

Meanwhile, the first mat 450 can be coupled to the first support part 300 or the seat back frame 22 through rails so as to be slidable forward or backward, and the second mat 750 can be slid upward or backward. It can be connected to the second support part 600 or the cushion frame 24 through rails so that it can slide downward.

Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention. Since it does not represent all the technical ideas of the invention, it must be understood that there are various equivalents and modifications that can be substituted for them at the time of this application. Therefore, the above-described embodiments are to be considered in all respects as illustrative and not restrictive, and the scope of the invention is indicated by the appended claims rather than by the detailed description. All modifications or variations deriving from the disclosed meaning and scope of the claims and equivalent concepts thereof are to be construed as included within the scope of the invention.

100 Support assembly 200 First support drive part 300 First support part 400 First tube 500 Second support drive part 600 Second support part 700 Second tube 800 Pump

Claims (6)

In the support drive unit coupled to the seat frame,
a support portion coupled to the seat frame;
a tube coupled to the support;
a mat coupled to the support so as to be separated from or adjacent to the support with the tube interposed therebetween;
The tube is configured to expand and push out the mat by being driven by a pump connected to the tube via a hose ,
The support includes a first support coupled to the seat back frame, the tube includes a first tube coupled to the front of the first support, and the mat extends forward and backward in front of the first tube. a first mat movably coupled to the first support;
The first support part rotates on a first support bracket coupled to the seat back frame behind the first tube and on a shaft extending on both sides of the first mat above the first support bracket. A support drive , comprising a second support bracket that is freely coupled . The support part is
2. The support drive unit according to claim 1, wherein the support driving unit is formed in a square plate shape, is coupled to the seat frame, and is rotatably coupled to the mat. a first support drive unit comprising the support drive unit according to claim 1 ;
a second support coupled to the cushion frame; a second tube coupled to the upper portion of the second support; and a second mat coupled to the second support so as to be vertically movable on the upper portion of the second tube. a second support drive;
A support assembly comprising: a pump coupled to a lower portion of the cushion frame and connected to the first tube and the second tube via a hose to supply air. The second support part is
a third support bracket coupled to the front of the cushion frame under the second tube and rotatably coupled to the second mat;
4. The support assembly as claimed in claim 3, further comprising a fourth support bracket having one end coupled to the rear of the third support bracket and the other end of which is annularly formed and coupled to the rear of the cushion frame. The second mat is
2. One end is formed in a plate shape, a portion of the front edge is rotatably coupled to the third support bracket, and the other end extends backward and upward from the one end by a predetermined distance. 5. The support assembly according to 4 . The third support bracket is
5. The support assembly according to claim 4 , wherein a portion of both sides are bent forward and formed in an arch shape protruding rearward.

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